I used to provide some user support at a previous job. (It wasn’t exactly my job, but people would ask for help.) And it’d be easy to get frustrated, thinking people were stupid or incompetent, but I’d remind myself that being good at computers isn’t part of their job, it’s part of my job. These people were hired for other areas of expertise. If I had to do take on parts of their jobs, I’d look stupid and incompetent too.
That said… sometimes the level of incomprehension people have really is incomprehensible to me. There’s a level where you’re reaching wilful ignorance. When I point at something on the screen and tell the person to click on that… and they can’t or won’t move the mouse there and click on it…